KR102268580B1 - prefabricated precast concrete culvert and method for construction the same - Google Patents

Abstract

The present invention relates to a prefabricated precast concrete (PC) culvert capable of fastening plates and a construction method thereof. The prefabricated PC culvert capable of fastening plates comprises: a body which includes both side walls placed to face each other at a distance from each other, an upper plate connected to a part between one of the side walls and an upper end of the other side wall, and an opening unit whose front side and rear side are opened toward an inner side of a lower plate connected to a part between one of the side walls and a lower end of the other side wall; a first plate embedded in a front surface of the side walls with a drop, in which one end unit in a widthwise direction is exposed to the outside of the side walls; and a second plate embedded in a rear surface of the side walls with a drop, in which one end unit in a widthwise direction is exposed to the outside of the side walls. Fastening members are fastened by penetrating the first plate of one body and the second plate of the other body, and the body and the other body are connected to each other by coming in contact with each other in a forward/backward direction.

Description

Plate fastening type prefabricated PC culvert and its construction method {prefabricated precast concrete culvert and method for construction the same}

The present invention relates to a PC culvert and a construction method thereof, and more particularly, to a plate fastening type prefabricated PC culvert that not only makes construction and maintenance easy, but also minimizes damage caused by an external shock, and It relates to its construction method.

There is a culvert as a structure for forming an artificial waterway.

The culvert is a tunnel shape with a hollow inside, and by using it, an artificial waterway, such as a sewer pipe, a drain pipe, and an intake pipe, can be formed.

Such a culvert can be made of various materials, and a 'PC (Precast Concrete) culvert as disclosed in Republic of Korea Utility Model No. 20-2019-0000071 and the like is commonly used.

On the other hand, PC culverts are usually assembled and installed.

In other words, the PC culvert is manufactured with a certain width and length by the manufacturer and then connected and installed at the site.

At this time, the connection part of the PC culvert is weaker than other parts, and thus it opens easily, so there is a problem in that watertightness is lowered.

In order to solve this problem, when the PC culvert assembly is installed, a tension material, for example, a PC prestressing strand, is penetrated and fixed to each object so that the connection between the objects can be made closely.

However, if the connection between objects is closely connected through the PC twisted line, it takes a considerable amount of time to penetrate the PC twisted line, thereby reducing workability.

In addition, if the connection between objects is closely connected through the PC lecture line, the scope of work is widened and time required because the object alone cannot be separated during the maintenance process after installation, such as the partial replacement process, and other objects have to be dismantled together. There was a problem that the workability was deteriorated.

In addition, if the connection between objects is closely connected through the PC twisted line, the impact applied from the outside reaches the entire object through the PC twisted line, so there is a problem in that the damage is increased.

For the above reasons, in the relevant field, attempts have been made to develop a prefabricated PC culvert that not only makes construction and maintenance easy, but also minimizes damage caused by external shocks, but no satisfactory results have been obtained so far. there is a situation.

Republic of Korea Public Utility Model No. 20-2019-0000071

The present invention has been proposed to solve the problems of the prior art as described above, and it is a plate fastening type prefabricated PC culvert that not only enables easy construction and maintenance, but also minimizes damage caused by external shocks. And it aims to provide a construction method thereof.

In order to achieve the above object, the present invention

Both sidewalls arranged to face each other at intervals, an upper plate connected between one of the sidewalls and the upper end of the other, and a lower plate connected between any one of the sidewalls and the lower end of the other one, the front and rear openings open to the inside The body is formed; a first plate embedded in the front surface of the side wall with a step difference, one end of which in the width direction is exposed to the outside of the side wall; and a second plate embedded in the rear surface of the side wall with a step difference, one end of which in the width direction is exposed to the outside of the side wall; the second plate of one of the body and the other of the first plate of the body It proposes a plate fastening type prefabricated PC culvert, characterized in that one of the body and the other body are buttted back and forth as the fastening member is fastened through it.

The body may include: a protrusion formed to extend from the upper end to the lower end of the front side of the side wall; and a concave portion formed to extend from the upper end to the lower end of the rear surface of the side wall, and formed in a shape corresponding to the protruding portion.

The projections and depressions include grooves extending from the top to the bottom.

The protrusion is formed so that the width of the distal end is narrower than the width of the distal end.

The first plate and the second plate may include a first through hole formed to pass through the front surface; and a second through hole formed to pass through the upper and lower surfaces.

The fastening member may be a bolt or a nut.

The plate fastening type prefabricated PC culvert according to the present invention includes a first plate embedded in the front side of the side wall of the body and a second plate embedded in the rear of the side wall of the body. As the fastening member is fastened through the second plate of the body, one body and the other body are connected back and forth while facing each other, so that the connection between the bodies can be easy and construction can be easy.

In addition, in the plate fastening type prefabricated PC culvert according to the present invention, by releasing the fastening member fastened through the first plate of one body and the second plate of the other body, any body and the other body are easily separated. Since it is separated, maintenance such as partial replacement after installation can be easy.

In addition, in the plate fastening type prefabricated PC culvert according to the present invention, the shock applied from the outside is concentrated only on the body connected to each other before and after, and the transmission to the body is insignificant, so the range of shock applied from the outside can be minimized. Damage caused by external shocks can be minimized.

In addition, in the plate fastening type prefabricated PC culvert according to the present invention, the body includes a protrusion and a depression, and as the protrusion of one body is inserted into the depression of the other body, the flow in the width direction of the body connected back and forth is suppressed. Therefore, the connection between the bodies can be smoother.

1 is a perspective view showing the external appearance of the plate fastening type prefabricated PC culvert according to the present invention.
Figure 2 is a plan view showing the connection of the plate fastening type prefabricated PC culvert according to the present invention.
Figure 3 is a side view showing the connection of the plate fastening type prefabricated PC culvert according to the present invention.
4 is an exemplary view for explaining the fastening of the fastening member between the first plate and the second plate in the plate fastening type prefabricated PC culvert according to the present invention.
5 is an exemplary view showing the attachment or application form of the water-repellent agent and the backup agent on the front of the body in the plate fastening type prefabricated PC culvert according to the present invention.
Figure 6 is an exemplary view showing the upper plate and lower plate portion protruding or recessed form in the plate fastening type prefabricated PC culvert according to the present invention.
7 is an exemplary view for explaining the partial replacement after the installation of the plate fastening type prefabricated PC culvert according to the present invention.
8 is an exemplary view showing another coupling form of the first plate and the second plate in the plate fastening type prefabricated PC culvert according to the present invention.

Hereinafter, the present invention will be described in detail based on the accompanying drawings.

As shown in Figure 1, the plate fastening type prefabricated PC culvert (A) according to the present invention, the body (100); a first plate 200; and a second plate 300 .

The body 100 of the present invention includes both sidewalls 130 disposed to face each other at a distance, and an upper plate 110 connected between one of the sidewalls 130 and the upper end of the other, and any one of the sidewalls 130 . and an opening 140 having front and rear open inside of the lower plate 120 connected between the lower end of the other one is formed.

Therefore, the opening 140 is connected by the connection between the bodies 100 to form a water channel.

At this time, when the water-repellent agent 170 and the back-up agent 180 are attached or applied to the front surface of the body 100 , when the body 100 is connected, the water-tightness of the connection portion is increased by the water-repellent agent 170 and the back-up agent 180 . can

Here, the water-repellent agent 170 and the back-up agent 180 may be of any general type as long as they can increase the watertightness of the connection portion when the body 100 is connected, and the water-repellent agent 170 and the back-up agent 180 . ) will be omitted.

And the body 100, the side wall 130, the protrusion 150 is formed to lead to the bottom from the top of the front; And the side wall 130 is formed to lead from the top to the bottom of the rear surface, the depression 160 is formed in a shape corresponding to the protrusion 150; by including a protrusion 150 of any one body 100 is the other body As it is inserted into the depression 160 of the 100 , the flow of the body 100 may be suppressed.

Here, the protrusion 150 and the depression 160 include grooves 151 and 161 extending from the top to the bottom, so that the water repellent 170 attached or applied to the front surface of the body 100 is the groove of the protrusion 150 ( As it is caught between the groove 161 of the 151) and the recessed part 160, separation from the body 100 can be prevented.

In addition, since the width of the tip of the protrusion 150 is formed to be narrower than the width of the distal end, the protrusion 150 may be smoothly inserted into the depression 160 .

And the upper plate 110 and the lower plate 120, as shown in Figure 6, in addition to the protrusion 150 and the depression 160, the front and rear are formed to be partially protruded and partially recessed, whereby the body 100 is connected between When this is made, as the water repellent 170 attached or applied between the body 100 is sandwiched between the partial protrusion formed on the upper plate 110 and the lower plate 120 of the body and the partially depressed part bitten therein, the body 100 ) can be prevented from being separated from each other, and the width direction flow of the body 100 coupled to each other can be suppressed as the protruding portion and the depressed portion are engaged with each other.

At this time, the protrusion 150 and the depression 160 may have any conventional shape as long as they can be coupled to each other, and detailed descriptions of the protrusion 150 and the depression 160 will be omitted.

The first plate 200 of the present invention is embedded with a step in the front side of the side wall 130 , and one end in the width direction is exposed to the outside of the side wall 130 .

Accordingly, the fastening member 400 is inserted by one end of the side wall 130 in the width direction exposed to the outside.

At this time, the first plate 200 includes a first through hole 210 formed to penetrate the front surface, so that the penetration of the fastening member 400 from the inside to the outside of the first plate 200 by the first through hole 210 is can be done

And the first plate 200 includes a second through hole 220 formed to penetrate through the upper and lower surfaces so that the embedded reinforcing bar 131 is connected in the vertical direction within the side wall 130 through the second through hole 220 . As it penetrates, the separation of the first plate 200 from the body 100 may be prevented.

In addition, as shown in FIG. 8 , the first plate 200 includes a connecting member 230 connected to the embedded reinforcing bar 131 so as to extend from one end to the side wall 130 in the vertical direction. Separation of the first plate 200 from the body 100 may be prevented by the connection between the 230 and the reinforcing bar 131 .

In this case, the connecting member 230 may be a wire or a reinforcing bar, which may be connected to the embedded reinforcing bar 131 so as to be connected in a vertical direction within the first plate and the side wall 130 by binding or welding.

The second plate 300 of the present invention is embedded with a step on the rear side of the side wall 130 , and one end in the width direction is exposed to the outside of the side wall 130 .

Accordingly, the fastening member 400 is inserted by one end of the second plate 300 in the width direction exposed to the outside of the side wall 130 .

At this time, the second plate 300 includes a first through hole 310 formed to penetrate the front surface, so that the penetration of the fastening member 400 from the outside to the inside by the first through hole 310 is prevented. can be done

And the second plate 300 includes a second through hole 320 that is formed to penetrate through the upper and lower surfaces, so that the reinforcing bar 131 embedded in the side wall 130 in the vertical direction passes through the second through hole 320 . As a result, the separation of the second plate 300 from the body 100 can be prevented.

In addition, as shown in FIG. 8 , the second plate 300 includes a connecting member 330 connected to the embedded reinforcing bar 131 so as to extend from one end to the side wall 130 in the vertical direction. Separation of the second plate 300 from the body 100 may be prevented by the connection between the 330 and the reinforcing bar 131 .

In this case, the connecting member 330 may be a wire or a reinforcing bar, which may be connected to the embedded reinforcing bar 131 so as to be connected in a vertical direction within the first plate and the side wall 130 by binding or welding.

Meanwhile, the fastening member 400 may be a bolt or a nut.

At this time, after the bolt is inserted through any one of the first plate 200 and the second plate 300 , for example, one end in the width direction of the first plate 200 , the first plate 200 and the second plate 300 . ) through the first through-holes 210 and 310, and the nut is inserted through either one of the first plate 200 and the second plate 300, for example, one end of the second plate 300 in the width direction. It is fastened to the tip of the bolt penetrating the first through-holes 210 and 310 of the first plate 200 and the second plate 300 .

Therefore, the connection of the first plate 200 and the second plate 300 is made by the fastening of the fastening member 400 so that any one of the body 100 and the other are connected back and forth.

Here, the nut is tightened by the air impact wrench, so that the fastening force of each fastening member 400 can be constantly maintained.

The construction of the plate fastening type prefabricated PC culvert (A) according to the present invention will be described in detail as follows.

First, as shown in FIG. 5 , the water repellent agent 170 and the backup agent 180 along one side of each body 100, for example, the front opening 140 of the body 100 in which the protrusion 150 is formed. is attached or applied.

Therefore, when the connection between the bodies 100 is made in the future, the watertightness of the connection part may be improved by the water repellent agent 170 and the backup agent 180 positioned between the bodies 100 .

At this time, the water repellent agent 170 is attached to the front surface of the body 100, in particular, when the connection between the body 100 is made by attaching or applying to include the protrusion 150, any one of the protrusions 150 of the body 100 in the future. Since it is sandwiched between the groove 151 formed in the groove 151 and the groove 161 formed in the depression 160 of the other body 100 into which the protrusion 150 is inserted, separation from the body 100 can be prevented. .

Next, any one body 100 and the other body 100 are arranged so as to be butt back and forth.

At this time, in the present invention, the body 100 includes a protrusion 150 formed to lead from the top to the bottom of the front side wall 130; And the side wall 130 is formed extending from the top to the bottom of the rear surface, the depression 160 is formed in a shape corresponding to the protrusion 150; including, the other body from the upper front of any one body (100) When the descent of (100) is made so that one body 100 and the other body 100 are arranged so as to be butt back and forth, the protrusion 150 of one body 100 is the depression 160 of the other body 100. ), so that any one body 100 and the other body 100 arranged in the front and rear are temporarily coupled, so that the flow in the width direction of the body 100 can be suppressed.

At this time, the protrusion 150 of the present invention is formed so that the width of the tip is narrower than the width of the distal end, the protrusion 150 of the other body 100 into the depression 160 of the one body 100 inside. Insertion may be easy.

On the other hand, each body 100 can be properly placed on the ground by performing basic work prior to the provisional coupling of the body 100, for example, excavation and ground treatment.

Next, the fastening member 400 is fastened between any one body 100 and the other body 100 so that any one body 100 and the other body 100 are connected.

At this time, the present invention, the side wall 130, the first plate is installed with a step in the front surface, the width direction one end is exposed to the outside of the side wall 130, the first plate 200; and a second plate 300 having a step on the rear side of the sidewall 130 and being installed buried therein, one end in the width direction being exposed to the outside of the sidewall 130; including, the first plate as shown in FIG. 4 . After inserting a fastening member 400, more specifically, a bolt through one end in the width direction of 200, and passing it through the second plate 300, through one end in the width direction of the second plate 300 at its tip. The fastening member 400 to be inserted, more specifically, the fastening of the fastening member 400 is made between one body 100 and the other body 100 by fastening the nut, thereby as shown in FIGS. 2 and 3 . Similarly, one body 100 and the other body 100 may be closely connected to each other.

Here, the number of connections between the bodies 100 is increased or decreased according to the length of the channel formation.

That is, a relatively long channel may be formed as a plurality of bodies 100 are connected, and a channel having a relatively short length may be formed as a relatively few bodies 100 are connected.

In addition, in the fastening process of the fastening member 400 , the nut is tightened by an air impact wrench, so that the fastening force of each fastening member 400 can be constantly maintained, so that the connection between the bodies 100 can be stably maintained.

On the other hand, after the fastening of the fastening member 400 is completed, a finishing operation is performed, for example, backfilling and packaging are performed, so that each body 100 may be buried.

The plate fastening type prefabricated PC culvert (A) according to the present invention that is connected and installed by fastening the fastening member 400 as described above can increase the efficiency of the construction work.

That is, since one body 100 and the other body 100 are connected simply and firmly by the fastening member 400 fastening, a separate member for strengthening the connection between the bodies 100, for example, mounting a tension material, etc. is unnecessary. The working time can be shortened and the efficiency of the construction work can be increased.

In addition, the plate fastening type prefabricated PC culvert (A) according to the present invention that is connected and installed by fastening the fastening member 400 can increase the efficiency of maintenance work.

That is, when one body 100 and the other body 100 are connected simply and firmly by the fastening member 400 fastening, some fastening members 400 are released when maintenance, for example, partial replacement is required after construction. Then, as shown in FIG. 7, partial separation can be achieved simply by lifting the body 100 vertically, so that the excavation range and the disconnection range can be minimized, thereby increasing the efficiency of maintenance work.

In addition, the prefabricated PC culvert (A) according to the present invention, which is connected and installed by the fastening of the fastening member 400, can minimize damage due to an impact applied from the outside.

That is, one body 100 and the other body 100 are simply and firmly connected by the fastening member 400 fastening, so that the impact applied from the outside after construction is concentrated only on the body 100 connected to each other before and after construction. In addition, since the transmission to the body 100 is insignificant, the range of shock transmission can be minimized, so that damage caused by the shock applied from the outside can be minimized.

Since the present invention as described above is not limited to the above-described embodiments, it can be changed within the scope without departing from the gist of the present invention claimed in the claims, and such changes are the present invention defined by the following claims. fall within the protection scope of the invention.

100: body 110: top plate
120: lower plate 130: side wall
131: reinforcing bar 140: opening
150: protrusion 151: groove
160: depression 161: groove
170: index agent 180: backup agent
200: first plate 210: first through hole
220: second through hole 230: connecting member
300: second plate 310: first through hole
320: second through hole 330: connecting member
400: fastening member A: PC culvert

Claims (6)

Both sidewalls arranged to face each other at intervals, an upper plate connected between one of the sidewalls and the upper end of the other, and a lower plate connected between any one of the sidewalls and the lower end of the other one, the front and rear openings open to the inside The body is formed;
a first plate embedded in the front surface of the side wall with a step difference, one end of which in the width direction is exposed to the outside of the side wall; and
A second plate embedded in the rear surface of the side wall with a step difference, one end of which in the width direction is exposed to the outside of the side wall;
As the first plate and the other of the body pass through the second plate of the body and the fastening member is fastened, any one of the body and the other body are connected back and forth while facing each other,
The body may include: a protrusion formed to extend from the upper end to the lower end of the front side of the side wall; and a depression formed in a shape corresponding to the projection, which is formed to extend from the top to the bottom of the rear surface of the side wall; the body as the projection of any one of the body is inserted into the depression of the other body. of the width direction flow is suppressed,
The protrusion and the depression include a groove extending from the top to the bottom, and the water repellent that is attached or applied to the front of the body is caught between the groove of the projection and the groove of the depression, so that separation from the body is prevented,
By including a first through hole formed so that each of the first and second plates passes through the front surface, as the fastening member is inserted into the first through hole, it is connected between the first plate and the second plate,
Reinforcing bars embedded in the side walls extending in a direction perpendicular to the longitudinal direction of the first plate and the second plate by including a second through hole formed so that each of the first plate and the second plate passes through the upper and lower surfaces of the first plate and the second plate Plate fastening type prefabricated PC culvert, characterized in that penetrating the first plate and the second plate as it is inserted into the two through-holes. delete delete delete In the construction method of the plate fastening type prefabricated PC culvert according to claim 1,
attaching or applying a water-repellent agent and a back-up agent around each front opening of the body;
Any one of the body to which the water repellent agent and the backing agent are attached or applied and the other are arranged so that the front and rear face each other, and the protrusion formed on the front side of the side wall of any one of the body is inserted into the depression formed on the rear side of the other side wall of the body Listing as much as possible; and
A fastening member is fastened between the first plate embedded with a step on the front side of the side wall of any one of the body and the second plate embedded with a step on the rear side of the side wall of the other body of the body by fastening the other one of the body Connecting; including,
The water-repellent agent is inserted into a groove formed to lead from the top to the bottom in each of the protrusion and the depression of the body to prevent separation from the body,
In the first plate and the second plate, the reinforcing bar embedded in the side wall extending in a direction orthogonal to the longitudinal direction of the first plate and the second plate is inserted into a second through hole formed to penetrate through the upper and lower surfaces. The construction method of the plate fastening type prefabricated PC culvert, characterized in that separation from the body is prevented accordingly. 6. The method of claim 5,
In the step of connecting one of the body and the other, the fastening member is fastened between the first plate and the second plate, and a nut is fastened to the tip of a bolt passing through the first plate and the second plate sequentially. Construction method of plate fastening type prefabricated PC culvert, characterized in that.

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